Abstract
Design concept for reinforced concrete slab structures subjected to impact load based on energy and load criteria is studied in this paper. Firstly, the evaluation of impact resistance for reinforced concrete handrails which were modeled using the layered finite element method, is proposed based on a few indexes. The effect of impact loading on several types of reinforced concrete handrails based on these indexes is discussed quanititatively as well as qualitatively. Next, design concept for reinforced concrete slab structures based on a dynamic analytical procedure is suggested. The energy criterion as well as load criterion are considered in the design procedure under impact load. Moreover, the indexes for impact resistance are employed for determining structural modification necessary in the design procedure.